68285578732 has 48 divisors (see below), whose sum is σ = 144067472640. Its totient is φ = 27665502912.

The previous prime is 68285578723. The next prime is 68285578759. The reversal of 68285578732 is 23787558286.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111018 + ... + 385870.

It is an arithmetic number, because the mean of its divisors is an integer number (3001405680).

Almost surely, 2^68285578732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68285578732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72033736320).

68285578732 is an abundant number, since it is smaller than the sum of its proper divisors (75781893908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68285578732 is a wasteful number, since it uses less digits than its factorization.

68285578732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275350 (or 275348 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 61.

The spelling of 68285578732 in words is "sixty-eight billion, two hundred eighty-five million, five hundred seventy-eight thousand, seven hundred thirty-two".